# cd /usr/local/src
# fetch http://www.daemonology.net/freebsd-update/freebsd-update-upgrade.tgz

freebsd-update-upgrade.tgz 0% of 21 kB 0 Bps
freebsd-update-upgrade.tgz 100% of 21 kB 110 kBps
# fetch http://www.daemonology.net/freebsd-update/freebsd-update-upgrade.tgz.asc

freebsd-update-upgrade.tgz.asc 0% of 187 B 0 Bps
freebsd-update-upgrade.tgz.asc 100% of 187 B 154 kBps

# tar -xf freebsd-update-upgrade.tgz

# sh freebsd-update.sh -f freebsd-update.conf -r 6.3-RC2 upgrade
# sh freebsd-update.sh -f freebsd-update.conf -r 6.3-RELEASE upgrade //これで6.3Rになります。

Looking up update.FreeBSD.org mirrors... 1 mirrors found.
Fetching public key from update1.FreeBSD.org... done.
Fetching metadata signature for 6.2-RELEASE from update1.FreeBSD.org... done.
Fetching metadata index... done.
Fetching 2 metadata files... done.
Inspecting system... done.

The following components of FreeBSD seem to be installed:
kernel/generic world/base

The following components of FreeBSD do not seem to be installed:
kernel/smp src/base src/bin src/contrib src/crypto src/etc src/games
src/gnu src/include src/krb5 src/lib src/libexec src/release src/rescue
src/sbin src/secure src/share src/sys src/tools src/ubin src/usbin
world/catpages world/dict world/doc world/games world/info
world/manpages world/proflibs

Does this look reasonable (y/n)? y

Fetching metadata signature for 6.3-RC2 from update1.FreeBSD.org... done.
Fetching metadata index... done.
Fetching 1 metadata patches. done.
Applying metadata patches... done.
Fetching 1 metadata files... done.
Inspecting system... done.
Preparing to download files... done.
Fetching 1636 patches.....10....20....30....40....50....60...1620....1630... done.
Applying patches... done.
Fetching 62 files... done.

The following files will be removed as part of updating to 6.3-RC2-p0:
/boot/kernel/hptmv.ko
/usr/share/examples/netgraph/bluetooth/rc.bluetooth
/usr/share/zoneinfo/Africa/Asmera
/usr/share/zoneinfo/Atlantic/Faeroe
/var/named/etc/namedb/PROTO.localhost-v6.rev
/var/named/etc/namedb/PROTO.localhost.rev
/var/named/etc/namedb/make-localhost

The following files will be added as part of updating to 6.3-RC2-p0:
/boot/kernel/acpi_dock.ko
/boot/kernel/coretemp.ko
/boot/kernel/hptrr.ko
/boot/kernel/if_cxgb.ko
/boot/kernel/if_edsc.ko
/boot/kernel/if_lagg.ko
/boot/kernel/if_msk.ko
/boot/kernel/if_mxge.ko
/boot/kernel/mfip.ko
/boot/kernel/mxge_eth_z8e.ko
/boot/kernel/mxge_ethp_z8e.ko
/boot/kernel/ng_deflate.ko
/boot/kernel/ng_pred1.ko
/boot/kernel/snd_envy24.ko
/boot/kernel/snd_envy24ht.ko
/boot/kernel/snd_hda.ko
/boot/kernel/snd_spicds.ko
/boot/kernel/uark.ko
/boot/kernel/wlan_amrr.ko
/etc/periodic/daily/480.status-ntpd
/etc/rc.d/FILESYSTEMS
/etc/rc.d/lockd
/etc/rc.d/statd
/lib/libncursesw.so.6
byte 660/usr/bin/gdbserver
/usr/include/bsnmp/bridge_snmp.h
/usr/include/cam/scsi/scsi_sg.h
/usr/include/net/bridgestp.h
/usr/include/net/ieee8023ad_lacp.h
/usr/include/net/if_lagg.h
/usr/include/net80211/ieee80211_amrr.h
/usr/include/netgraph/ng_deflate.h
/usr/include/netgraph/ng_pred1.h
/usr/include/sys/_rwlock.h
/usr/include/sys/_sx.h
/usr/include/sys/lock_profile.h
/usr/include/sys/rwlock.h
/usr/lib/libcursesw.a
/usr/lib/libcursesw.so
/usr/lib/libformw.a
/usr/lib/libformw.so
/usr/lib/libformw.so.3
/usr/lib/libmenuw.a
/usr/lib/libmenuw.so
/usr/lib/libmenuw.so.3
/usr/lib/libmytinfow.a
/usr/lib/libmytinfow.so
/usr/lib/libncursesw.a
/usr/lib/libncursesw.so
/usr/lib/libpanelw.a
byte 1338/usr/lib/libpanelw.so
/usr/lib/libpanelw.so.3
/usr/lib/libtermcapw.a
/usr/lib/libtermcapw.so
/usr/lib/libtermlibw.a
/usr/lib/libtermlibw.so
/usr/lib/libtinfow.a
/usr/lib/libtinfow.so
/usr/lib/snmp_bridge.so
/usr/lib/snmp_bridge.so.4
/usr/sbin/sade
/usr/sbin/wpa_passphrase
/usr/share/calendar/calendar.dutch
/usr/share/mk/bsd.port.options.mk
/usr/share/sendmail/cf/feature/badmx.m4
/usr/share/sendmail/cf/feature/block_bad_helo.m4
/usr/share/sendmail/cf/feature/require_rdns.m4
/usr/share/snmp/defs/bridge_tree.def
/usr/share/snmp/mibs/BEGEMOT-BRIDGE-MIB.txt
/usr/share/snmp/mibs/BRIDGE-MIB.txt
/usr/share/snmp/mibs/RSTP-MIB.txt
/usr/share/zoneinfo/Africa/Asmara
/usr/share/zoneinfo/America/Indiana/Tell_City
/usr/share/zoneinfo/America/Indiana/Winamac
/usr/share/zoneinfo/America/Resolute
/usr/share/zoneinfo/Atlantic/Faroe
byte 2163/usr/share/zoneinfo/Australia/Eucla
/var/named/etc/namedb/master/empty.db
/var/named/etc/namedb/master/localhost-forward.db
/var/named/etc/namedb/master/localhost-reverse.db

The following files will be updated as part of updating to 6.3-RC2-p0:
/COPYRIGHT
/bin/[
/bin/cat
･････････････
byte 31219


# sh freebsd-update.sh -f freebsd-update.conf install
Installing updates...
Kernel updates have been installed. Please reboot and run
"freebsd-update.sh install" again to finish installing updates.
# shutdown -r now

# cd /usr/local/src
# sh freebsd-update.sh -f freebsd-update.conf install
Installing updates... done.
# shutdown -r now

# uname -a

FreeBSD hoge.example.com 6.3-RC2 FreeBSD 6.3-RC2 #0: Sun Dec 30 06:28:10 UTC 2007 root@dessler.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386

参考
FreeBSD minor version upgrades